Improvement in lever-jack



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Letters Patent No. 81,467, dated August 25, 1868.

IMPROVEMENT IN ,LEVER-JACK.

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To ALL WHOM 1r MAY eoNoERN:

Be it known that I, JACOB BERNHEXSEL, Sr., of Green Park, Perry county, and State of Pennsylvania, have invented 4an Imprved Lever-Jack g and I hereby declare the following to be an exact description thereof,

reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a i ,part of this specification, in which- Figure 1 represents a side elevation of the lever-jack.

Figurev 2, a front view of the same.

Figure 3, a top view.

The nature of myJ invention consists in the construction and arrangement of a spring attached to a selfmovin'g slide, connected with themain lever, the pivot of which operates in a curved oval s1ot,that enables the lever to be easily raised and lowered, so as to hook into the upright rack. 'i

A represents the frame; B,'the upright rack that operates in the centre of the frame; C, the main lever, by means of which the rack B is raised. D is a curved oval slot on the inside of the jaws E, in which the pivot I G of the lever C operates up and down, so as to get. the proper purchase on the rack. H is a coiled spring, the

one end of iwhich is attached to the top of theframe A., and the other end to a lever-rod, J, that operates on top of the main lever, C. The spring operates in a slot in the front end of the horizontal slide K, the slide K being for the purpose of catching into the teeth of the rack and holding itlup whilst the lever C is being operated; the object of the rod J being to press the slide K into each tooth of' the rack during the operation of the leveif C. L is a guard, to prevent the spring from throwing the slide K out of its place.

What I claim as my invention, and desire to secure by Letters Patent, s

Thecoilcd spring H, the slide K, and the curved oval slot D, in which the pivot G of the lever C works,

when arranged, constructed, and operating as herein described and for the purpose set forth.

JACOB BERNHEISEL, SR.

Witnesses Gao. A. GIBSON,

WM. RICE. 

